Huawei NetCol8000-E220 User Manual page 162

NetCol8000-E220 Modular Indirect Evaporative Cooling
System
User Manual
Alarm Alarm
ID Severity
A291- MAJOR
02
A296- CRITICA
01 L
A296- CRITICA
01 L
A296- CRITICA
02 L
A296- CRITICA
02 L
A298- MAJOR
01
Issue 02 (2019-10-10)
Alarm
Probable Cause
Name
5. The compressor is faulty.
Compressor 2 1. The compressor lacks oil.
overcurrent
2. The condenser fins are dirty or
alarm
blocked.
3. The outdoor fan is abnormal.
4. The refrigerant is overfilled.
5. The compressor is faulty.
EEV 1 low 1. The electronic expansion valve
superheat (EEV) coil is loose.
degree alarm
2. The EEV coil is faulty.
3. The cables to the electronic
expansion valve coil are loose or
damaged.
4. The EEV is faulty.
EEV 2 low 1. The electronic expansion valve
superheat (EEV) coil is loose.
degree alarm
2. The EEV coil is faulty.
3. The cables to the electronic
expansion valve coil are loose or
damaged.
4. The EEV is faulty.
EEV 1 low 1. The electronic expansion valve
superheat (EEV) coil is loose.
degree alarm
2. The EEV coil is faulty.
3. The EEV is faulty.
4. The cables to the electronic
expansion valve coil are loose or
damaged.
EEV 2 low 1. The electronic expansion valve
superheat (EEV) coil is loose.
degree alarm
2. The EEV coil is faulty.
3. The EEV is faulty.
4. The cables to the electronic
expansion valve coil are loose or
damaged.
Spray 1. The spray overflow pipe is dirty
overflow or blocked.
alarm
2. The float does not drop because
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6 System Operation and Maintenance
Solution
refrigerant.
5. Maintain or replace the
compressor.
1. Fill oil to the compressor.
2. Clean the condenser fins.
3. Maintain or replace the
outdoor fan.
4. Decrease certain amount of
refrigerant.
5. Maintain or replace the
compressor.
1. Reinstall the EEV coil.
2. Replace the EEV coil.
3. Check and maintain the
cables to the EEV coil.
4. Replace the EEV.
1. Reinstall the EEV coil.
2. Replace the EEV coil.
3. Check and maintain the
cables to the EEV coil.
4. Replace the EEV.
1. Reinstall the EEV coil.
2. Replace the EEV coil.
3. Replace the EEV.
4. Check and maintain the
cables to the EEV coil.
1. Reinstall the EEV coil.
2. Replace the EEV coil.
3. Replace the EEV.
4. Check and maintain the
cables to the EEV coil.
1. Clear the spray overflow pipe.
2. Maintain the spray high float.
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